The Black Force is one of the three forces in Murim. Cheon Ma Sin Gun is considered to be the unofficial leader of the Black Force due to his strength and at one point in his life led a massive campaign against the White Force defeating many guilds along the way. Due to this the Black Force members are waiting for the day Cheon Ma Sin Gun picks up where he left off and continues to destroy the White Force.
Currently there are many notable members that consist of the Black Force.
Cheon Ma Sin Gun: Is considered to be the unofficial leader of the Black Force. He once led a campaign against many of the White Force's Clans but suddenly stopped. Most of the Black Force is waiting for the day he picks up where he left off and continues to destroy the White Force.
Black Winds: Are a group made up of Elite Martial Artists that are gathered by Cheon Ma Sin Gun himself. Their main job is to protect Cheon Ma Sin Gun's Disciples.
Do Wol Cheon: Is Cheon Ma Sin Gun's Second Disciple. He seems to have connections with Sinji.
Jin Fung Bek: Is Cheon Ma Sin Gun's Third Disciple. He is very brutal and kills anyone who gets in his way. He displayed enough strength to destroy clans on his own, even the Song Mu Guild, which is known for its strength. Although he has immense strength he is sick with a fatal illness and therefore dying.
Choi Sang Hwe: Is Cheon Ma Sin Gun's Fourth Disciple. He is very kind hearted and because of his feminine looks he is often mistaken for a girl. Despite his appearance he is strong enough to battle against one of the Neutral Force's Elite Four.
Cho Un Hyun: Is Cheon Ma Sin Gun's Fifth Disciple. Despite being strong in his own right he is often bullied by his fellow disciples. He once plotted Han Bi-Kwangs death.
Han Bi-Kwang: Is Cheon Ma Sin Gun's Sixth Disciple. He was given the Flame Dragon Blade by Cheon Ma Sin Gun which makes him a possible successor. Even though he is considered a disciple of Cheon Ma Sin Gun he often goes out on his own doing whatever he feels like. Since the disciples are ranked in order of strength he would be considered the weakest, but he has shown much progression so even though he still holds the 6th Disciple position he would be much higher.
Noho: Is the owner if the Five Spear of Chu Heun. At one point in time he wanted to become a disciple of Cheon Ma Sin Gun but become disappointed when he was offered a position in the Black Winds instead. He is currently an ally to Han Bi-Kwang, Cheon Ma Sin Gun's 6th Disciple, and thus recognizes the strength it takes to become his disciple.